YORK Launches Dual Fuel Rooftop Units
YORK, a licensed brand of Bosch Home Comfort Group, has launched the Sun Pro and Sun Choice Dual Fuel Rooftop Units, which combine a heat pump with a gas or propane furnace as a supplemental heat source. Ideal for a wide range of light commercial applications, the RTUs help building owners in colder climates reduce utility spending and support long-term energy goals while reliably maintaining occupant comfort.
Innovations in heat pump technology have rapidly advanced in recent years, making dual fuel systems a viable solution across many building types and environments. When outdoor temperatures drop below the heat pump’s operating range, the system transitions to the furnace as auxiliary backup heating. The seamless transition between fuel sources is automated through innovative controls. System reliability is enhanced through built-in redundancy and reliability.
The Sun Pro model (6.5–12.5 tons) is designed for easy serviceability with a slide-out blower and hinged panels for tool-less access. The Sun Choice model (12.5–25 tons) features a direct-drive plenum fan that improves efficiency, simplifies service, speeds commissioning and expands airflow capability. For most installations, Sun Choice units do not require curb adapters.
